Author(s): Anatolij R. Karev; Masoud Farzaneh; Laszlo Kollar; Sandy Vaslon
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Abstract: This article addresses several heretofore unexplored aspects of modern concepts in the theory of atmospheric ice accretion on the surface of a test body placed within a supercooled aerosol cloud. The air velocity of a flowing aerosol cloud in experiments carried out in an icing wind tunnel is considered as a vector which forms angles with the cylinder axis in the vertical plane passing in both streamwise and lateral directions. This complicates both momentum- and heat-transfer from the icing surface, introducing different types of water film instabilities and modifying the accreting ice mass. Under conditions modeling freezing rain (ZR) and in-cloud icing (CI), the ice mass accreted on the experimental cylinder oriented streamwise was always found to be smaller than the mass accreted on the cylinder oriented perpendicular to air flow.
Year: 2004